EA has announced Battlefield 3: Close Quarters  expansion pack which is to release in June. The Battlefield 3: Close Quarters will include  4 new maps and 10 new weapons but sadly no new vehicles. After the launch of the Battlefield 3: Close Quarters there will be two more expansion packs to release, first one called “Armored Kill” which will include larger maps, with new drivable vehicles, the second will be “End Game” although not much information is know about it.

Source: Joystiq